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package test_internal
@(require) import "core:log"
import "core:math"
import "core:testing"
@test
pow_test :: proc(t: ^testing.T) {
for exp in -2000..=2000 {
{
v1 := math.pow(2, f64(exp))
v2 := math.pow2_f64(exp)
_v1 := transmute(u64)v1
_v2 := transmute(u64)v2
if exp == -1075 && ODIN_OS == .Windows {
// LLVM on Windows returns 0h00000000_00000001 for pow(2, -1075),
// unlike macOS and Linux where it returns 0h00000000_00000000
// pow2_f64 returns the same float on all platforms because it isn't this stupid
_v1 = 0h00000000_00000000
}
testing.expectf(t, _v1 == _v2, "Expected math.pow2_f64(%d) == math.pow(2, %d) (= %16x), got %16x", exp, exp, _v1, _v2)
}
{
v1 := math.pow(2, f32(exp))
v2 := math.pow2_f32(exp)
_v1 := transmute(u32)v1
_v2 := transmute(u32)v2
testing.expectf(t, _v1 == _v2, "Expected math.pow2_f32(%d) == math.pow(2, %d) (= %08x), got %08x", exp, exp, _v1, _v2)
}
{
v1 := math.pow(2, f16(exp))
v2 := math.pow2_f16(exp)
_v2 := transmute(u16)v2
_v1 := transmute(u16)v1
when ODIN_ARCH == .arm64 {
if exp == -25 {
log.info("skipping known test failure on arm64, Expected math.pow2_f16(-25) == math.pow(2, -25) (= 0000), got 0001")
_v2 = 0
}
}
testing.expectf(t, _v1 == _v2, "Expected math.pow2_f16(%d) == math.pow(2, %d) (= %04x), got %04x", exp, exp, _v1, _v2)
}
}
}
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